Related Questions

Ethernet networks can be cabled in a number of topologies, depending on what works best in each environment. As more nodes are added, the efficiency of Ethernet decreases. Select the best answer as to why Ethernet becomes less efficient as size increases.
A Network collisions occur
B Repeaters cannot increase the signal strength sufficiently
C Cable terminators do not reflect the signal properly
D Cable terminators do not absorb the signal properly
E "Line echo" occurs due to the impedance of the cable
In a class of 60 students, 20 students like Math, 25 students like English and 30 students like Science. If 5 Students like both Math and Science, 8 Students like both English and Science and 3 students like neither of these subjects, how many students like all of the three subjects?
A 2
B 3
C 4
D 5
What PPP protocol provides dynamic addressing, authentication, and multilink?
A NCP
B HDLC
C LCP
D X.25
Which command will configure a switch port to use the IEEE standard method of inserting VLAN membership information into Ethernet frames?
A Switch (config) #switchport trunk encapsulation ietf
B Switch (config) #switchport trunk encapsulation dot1q
C Switch (config-if) #switchport trunk encapsulation ietf
D Switch (config-if) #switchport trunk encapsulation dot1q
Your company uses both Ethernet and token-ring LAN's in the same building. Users need access to resources and the ability to transmit data between the LAN's. Which device would you use to enable communications between dissimilar LAN's that use different protocols?
A bridge
B router
C gateway
D repeater
E None of the above
You are adding a new server to your network. The network uses TCP/IP. The new server will provide users with dial-up access to network resources. The data link communications protocol you choose for dial-up access must allow you to provide secure authentication. Which protocol should you choose?
A PPP
B DLC
C In the System option in Control Panel, select the setting that allows users to log on locally
D In the System option in Control Panel, set the user environment variables to allow Maria to log on locally
E None of the above
A,B,C,D,E,G and I are seven friends who study in three different standards namely 5th, 6th and 7th such that not less than two friends study in the same standard. Each friend also has a different favorite subject namely History, Civics, English, Bangla, Science , Maths , and Economics but not necessarily in the same order. A likes Maths and studies in the 5th standard with only one other friend who likes Bangla. I studies with tow other friends . Both the friends who study with I like languages (Here languages include only Science , English and Bangla ) . D studies in the 6th standard with only one person and does not like Civics . E studies with only one friend . The one who likes history does not study in 5th or 6th standard . E does not like languages. C does not like English , Science or Civics. Which combination represents E's favorite subject and the standard in which he studies?
A Civics and 7th
B Economics and 5th
C Civics and 6th
D History and 7th
In a school, 40% of the students are male and all the students like either math or English. If 60% of the students like math and 30% of the students are male who like English, what percentage students of the class are female students who like English?
A 5%
B 10%
C 30%
D 50%
In a class, 60% of children like Mathematics, 45% like Science and 25% like both Mathematics and Science. What is the percentage of children who like at least one subject?
A 70%
B 80%
C 45%
D 55%
Out of 30 student o any class, 20 students like football and 15 students like cricket . The number of students who like both the games is 10. Find the number of students who do not like any of the sports.
A 4
B 5
C 6
D 8

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